Boost and buck AVR for voltage stabilization
Built-in super-fast charger that shortens charging time
Off mode charging function
Optional no-load shutdown
Built-in self-diagnostic function
Mercury 1.55VA ups also comes with auto restart while AC is recovering
Power-on self-test
Mercury 1550VA has a compact size and it is also light weight.
Line Interactive
Audible alarm for backup, low battery or Overload mode
This UPS also provides AC overload protection.